What is a Welded Longitudinal Finned Tube?

A welded longitudinal finned tube is a heat exchange element whose fins are in the same direction as the heat exchange tube. It is usually used in shell and tube heat exchangers in the petrochemical industry and aluminum row tube evaporators in cold storage.

Structural features of welded longitudinal finned tubes

The fins of welded longitudinal finned tubes are in the same direction as the heat exchange tubes. This design allows heat to be transferred more evenly along the length of the tube. This structure not only increases the heat exchange area, but also optimizes the heat exchange efficiency.

Manufacturing process of welded longitudinal finned tubes

In the manufacturing process, high-frequency welding technology is a key process. The skin effect and proximity effect generated by high-frequency current make the fins and the base tube reach high temperature in a short time and achieve molten welding, ensuring the close combination of the fins and the base tube, and improving the strength and durability of the finned tube.

Welded longitudinal finned tube application areas

Welded longitudinal finned tubes are widely used in various heating, cooling and heat exchange equipment, especially in the chemical, petroleum, electric power and other industries. Due to their efficient heat exchange performance and stable operation performance, they have become an indispensable key component.

The following table shows Datang’s manufacturing capabilities for longitudinal finned tube: